Majin Buu, Assault of the Agents of Destruction

[Double Striker] [Blocker] [+/- 0] [Active:Main] Draw 1 card; at the start of your opponent's next Main Phase, switch this card to Active Mode, and if your Leader Card is blue, switch up to 1 of your mono-blue energy to Active Mode. [-1] [Auto] When your opponent attacks with a Battle Card, you may choose 1 of their Battle Cards and place it at the bottom of its owner's deck.